Storage-battery plate.



No* *fil liilldlleildl@ HOWARD STANLEY MELLS, QF ASTRE., :NEW

STDRGE-BETERY Specification of Letters 'etent.

implication filed June 18, 1912. Serial No. fl'l.

To all Iwhom t may concern Be it known that l, HOWARD STANLEY Minis, ecitizen of lthe United States., residing at flstorie, in the county ofQueens and State of New York, have invented new und useful Improvementsin Storage-Bettery Plates, or which the following is e. full, clear,concise, and exact description, reference being had to the accompanyingdrewing, forming n port of this specification.

lvlfy invention lrelates to storage battery plates.

@ne ci' the objects of the invention is to provide en ini-.provedconductingironie or grid .for holding` the lead oXid or paste used asthe active materiel in battery plates of the pasted type.

Another obje-et is to provide an improved oettery plate of high capacityand low interuel resistance, which will permit discharges et high rateswith the least falling off in voltage.

A further object is to provide a battery having :in improveddistribution of conducting bers and relatively great aren. of Contactwith the electrolyte.

n additional object is to provide more avenues for the escape of ges andfor the circule. ion of the electrolyte.

Figure l is en elevation s grid which embodies Vthe invention. Fig. 2 iss section thereof on tie line 2-2 of Fig. l. is u. section of :1modiiied form of grid.

The grid shown in l and 2 has en outer freine of ontiinonious lendconsisting ol side hars l und end here 2-2 integral therewith. A.suitable terminal lug 3 oiC auf;

desired configuration is provided at one end of the ironie. The end barsare connected by o plurality of suhstntislly parallel equally spacedlongitudinal bars or strips 4.- of e Width substantially equal to thethickness of the frame, as shown in Fig. il. These strips ere also medeof ontnnonious lead and are prefere-bly cast integr-:il with the outerframe. The tops of several of the oars nearest to the terminal .lug areprei'- ershly thickened or reinforced, as shown fi', where they join theupper cross-bar 2, and the remaining strips are also preferablyreinforced to a certain extent et their upper ends. Said longitudinalstrips may also be reinforced et their lower ends, if desired. Theadvantage of the special reinforcement of the strips adjacent to theterminel lug E is niet the necessary strength and rigidity is providedat the point where there is greatest need for reinforcement, end at theseme time'the increased aree of the strips provides ample currentcarrying capacity in the region of the terminal lug Where the current isthe greatest. The grid is rein forced by diagonal bars 5 and 6, all ofthe liars 5 being parallel to each other cest on one side or the gridintegral therewith, sind all oi,I the loin-s 16 being also parallel andcest integrally with the other side of the grid, the bars on one side,lio-Wever, being arrangedl at an angle with the bars on the other side,whereby e lattice is formed. These diagonal bars act as retainingineinbers and forni smell retaining frames in the shapeoiperallelograms, which do not come opposite each other on the two sidesof the grid. Y y y As seen in il, the lattice hers are very fine and erespaced sparta distance nearly equal to the width of the longitudinalstrips l. lilith this construction the active me teriel forced into thegrid is formed es e series of continuous 'zirzillel slabs or strips,each of which extends from one end of the grid to the other Withoutinterruption. The fictive material, however, is prevented from tellingout the side of the grid by the lettiee ivorlr, and, furthermore, it islocked in position thereby. The interior o?? the grid lief ing open,except for the longitudinal strips, the maximum amount of activemateriel is .retained therein. The paste being forced against such o..large i'iumber or conducting liars, the conductivity of the plate as aWhole is ample for the current to he carried. in the modiiication shownin 3 the longitudinal strips 7 are made up or' double bars spaced apartinstead of extending through the plate. As a. result, the activematerial is retained in the grid in the form oi' e continuousuninterrupted sheet, instead of being divided up into s plurality ofparallel strips as in the first forni described. The remaining elementsof the ,grid are similar to those described in Connection with F l andS3. l in both forms oi' grids the maximum aree oit' eetl e materiel isexposed directly to the electrolyte, Wille only o. relatively srnslleinount of the lend frame is so exposed. e lend lattice work retains the:ictive materiel .in vmsi-tion end maintains proper Contact therewith,at the seine time constituting e coi'idueting path to conduct ou nt inend otenteol den.. lili 7.

eut ei the grid with the leastinternal resistance. The grid is Verythin, as will be seen7 and as a result a large number of grids may bearranged in a given space, whereby a battery of increased Capacity maybe obtained. The pasted grid may be used either as a positive 0rnegative plate, the negative plate being somewhat thinner than thepositive plate.

l de not limit myself to the details ot construction shown anddescribed, as Various changes may be made therein without .departingfrom the invention as expressed in the appended claim.

What elaini as new and desire to secure by Letters Patent of the United`States is: l

grid for battery plates havingjenbstantially uniformthieknessthrouglient comprising a rectangular` frame, longitudinal barsextending from end to end of said trarne parallel with the longer sidesthereof,

VSaid bars being flush with the opposite faces of said frame, a terminallug for said grid diagonal directions and the bars on opposite sidesbeingV spaced apart, whereby receptacles for active material areprovided which extend eontii'niously from end to end 0i' said gridbetween said longitudinal bars, said diagonal bars serving as retainingmeans for said active material.

'in witness whereof, I have hereunto subscribed rny naine in thepresence of two Witnesses.

HOWARD STANLEY MLLS. Witnesses: ROBERT .GL01-nissan M. SCHAVEL.

